Stone-picker



F. M. WYBLE.

STONE PICKER.

APPLICATION FILED mma. |911.

Patented Sept. 16, 1919.

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FRANK M. WYBLE, 0F LANSING, MICHIGAN.

STONE-PICKER.

Specification of Letters Patent.

Patented Sept. 16, 1919.l

Application filed January 26, 1917. Serial No. 144,726.

To all whom it may concern:

Be it known that I, FRANK M. WYELE, a citizen of the United States, residing at Lansing, in the county of Ingham and State of Michigan, have invented a new and useful Improvement in Stone-Pickers, of which the following is a specilcation.

My invention relates more especiall to devices used for removing stones fii'om beans in the process of threshing and its purposes are to make a device that, while it shall be simple in construction, shall effectively remove all stones whatever their size from the beans and shall de osit them in a place by themselves as may e decided upon in the construction of the machine, separate entirely not only from the threshed beans but from the pods and other refuse.

I attain these purposes by the means shown in the accompanying drawings, in which Figure 1 `is a longitudinal section of that part of my device, ada ted to be attached to a bean separator. he separator itself is not shown because it forms no part of my invention and may be of any approved or desired construction. Fig.` 2 is an elevation of a small part of the left hand side of my device showing the method of driving the raddle or belt which carries the beans to the stone picking mechanism. Fig. 3 is a corresponding view of the right hand side of the device showing the method of driving the two beaters to he hereafter more fully described. Figs. 4 and 5 show the arrangement of the teeth on the `beaters 13 and 12 respectively. Fig. `6 is a detail showing the arrangement of the sieve 22.

Referring more particularly to the drawings, 1 is the main body of my device which of any approved form of bean thresher. The description of the mechanism is preferably made in connection with a description of the method of operation.

In operating my device, the unthreshed beans are thrown first upon the feed table 2 fallingupon the raddle or endless belt 3, which is driven by a sprocket wheel 4`and sprocket 5, the sprockets being driven by the sprocket chain 6, which in turn is driven in any desired manner from the mechanism of the bean thresher itself, the exact lace and manner of its connection being etermined by the type of the thresher to which it may be attached and varying therefore with Jthat type. It is therefore not shown in the' 1s adapted to be mounted on the feed end,

drawings. The s rocket chain 6 is adjusted by an idler sprocket 7 adjustably connected as by the slide and bolt 8 to the main frame of m device, but any other desiredmeans of e ecting this adjustment may be employed without departing from my invention. The raddle 3 is guided and kept in place by passing over idlers 9, `10 and 11.

This raddle moves 1n the direction indi-65 lower beater 13, in which the teeth are much closer together as appears by comparing Figs. 4 and 5. The sprocket Wheels 4 and 9 are so placed with reference to the beater 13 that the raddle passing over those sprockets form substantially a radial line with reference to the beater 13. That is, they deliver they pods to the beater 13 substantially in a radial direction. The beaters 12 and 13 are driven from the main driving mechanism of the thresher in `any suitable manner preferably as ,shown in Fig. 3, in which `the beater 13 is driven directly from the main thresher belt 14 by the pulley 15, which in turn drives the beater 13 by the cross belt 16 and pulley 17, but it is evident that this part also of my invention might be considerably varied without departing from the invention.

`The beaters 1'2 and 13 are driven at a comparatively high rate of speed, preferably from 500 to 700 revolutions per minute, but the rate of speed may be varied for the character of the work that is to be done. When the mass of beans, vines, etc., strike the beater 13 they are thrown off in a tangential direction. The beans and pods being lighter and more bulky meet a greater resistance from the air and fall below theshield `18 into the space 19 and thence to the cylinder of the thresher proper, which forms no part of my invention and, as already stated, may be of any approved design. If any stones, however, are found they are thrown with greater force, in the direction indicated by the arrow and strike the inside of the curved guide 20 which is formed of 'such radius v, theincontiinuall and placed in such a position as shall eectively bring about the desired separation between beans, vines, etc.,-a1rd-stonesfandfshall also serve as a guide to the stones intheir travel toward the point of discharge. "The inertia of the stones combined With their fveloeity eauses them' to#A travel along' the inside of the curved shieldt). lf any, ;of them lose velocity and'fall they are caught by the 'shieldi 118,1. theposiiten; er'whclr is ,anchas-:t0 catchy lalrieady.-stated,-a-ll.stones i the velocityiandferce ,of l chtfis. notsnileiellt .tO-keep ym contact-With the interior surface ef y ,the :Shield 20. ,llVhen the. stones i reaehithelrearffend-Moi. the shield; 20, they anchalso all thatl have italien upon the shield 16, falli. riponthevsieve 722 Whiehis arranged ,f atan angle .xaerossfthe endaof theidevie'eas shown infFkijga l.v 'This sieve is supplied with perf@rations .-o'l'fislleh size ythat any beans that may-:tall on it'ffallthronghinto theflaoe 19 'andfggoA .on thronghgthe threshen; Ihati the stones `roll tdawn ,and :are delivered Toni the :ground: at the. @atei-.de iin.; the. realm land Side of; .thedevice vThe upper -beaiterilis placed in.; such fa1 position .with f referenee' tofraddgle ..3 vasfto -mostietectively beat np, loosen and yHatten ,out :the layer of vines and :pods

@dannpeduonfthe raddle as already stated, the Aexact distance lbeing determined `by the size io'ffthe machine and the rapidityv of the desiredifeed. i- Qr, it` desiredatheposition of Ithe beater lQ'may -be-,made adj ustahle in any el the ivellnlrnoivn 'i manners.

from .f crops, the. combination .of ya rapidly revolving beater, means -ter Edelivering orops Vvto #the beater approximately ion a radial "line, said-Theater .bein-gx adapted i-to expel stones'. iin` the materialy fedfthereto outwardly therefrom, a guide arranged .to A: direct the stones thrownoutwardly-from the beater to ga point Yof .f-fdiseharge, and 'means associated :with :said Aguide for :separating the "stonesffrom theyerops.

13. :The #combination an: a: stone-.pieken for removing. stones from crops, `of? afrapidly' revolving beater; means for delivering the crops to said beater approxnnately on a radial lineg-.afgnideadapted to direct the stones to the point of discharge, and means "for separating the stones from the crops,

said means comprising an inclined shield ybeneath -said guide and an inclined sieve kdaptedfto receiveyand separate vegetable matter and stones that may fall upon it.

4. In a stone picker for removing stones froin'erops, the combination of ia rapidly revolving,beater, ineans for delivering cropsl to the beater iapproxinlately on a radial line, 5hsai-vd Vbeater -beingadapted to expel stones in. the- 4material` 'ted thereto ontw ard l v therefronn-and a curvedpgnide positioned te receive yjthestones expelled by, the vbeater and direct themy to a point ot discharge.

,15.,111 avstone piclerior removing stones. from erops,.the combination of` a rapidi)v revolving beater, mea-nsor delivering crops to the beater, thebeater beingndapted to expel `stonesfim the nziaterial .ted thereto onlyvardly therefrom, `a-ngd avjgnide extending rearwardly lfoi: x,the beater and adam ed j te direct-stones y thrown outwardly =from lln beater to la point oidischarge.

v.6.1n,a-,stone :picker :for removingstones fromfcropspthe combination of a ,rapidly revolving beater, `m cans .tor delivering crops Ato thefbeater, thebeater being adapted lo expel stones in the materiali ted theretoY eniavardlytherefrom, and a guide disposed above the beate'rqand having agniding snr- ;aee arranged in the path ol travel el the expelledrstones for directing theel-,ones to ya point et discharge.

7. lla` stonel piekenL for removing` stones fronrcropspthe.co1nbination of a rapidlirevolving fbeater, means for delivering crops .toithe' beater, thef beater being adapted to -expelsstones in the material fed thereto entyvvardly therefronn-a guide .extending above thebeater arrz-inged to receive stones expelled from the'beateimand to direct them to a-point ofdiseharge, and a shield lmneah saidiguide.

w8. :Inra stone; picker 'for removing stones 'fronrcrops, the combination of a rapidly revolving beater, -meansor delivering crops to fthe beater, the beater being v adapted to expel stones in the materialy fedvthereto ont- Wardly therefrom, a guide extending above the 4,beater arrangedlto receivefstones expelledffrom the beater and to 'direct them to g va-pointA of discharge, a shieldy beneath said guida-and ascreen at the delivery end of theguide to separate the stones from the crops.

FRANK MVYBLE.

@gmini-Mathis patent-may hemhtalned; forqvefcents mehr byraddnessinglthe Commissioner of- Patents.

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